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OpenStudy (hockeychick23):
Decide what number must be added to each binomial to make a perfect square trinomial. x^2-13x+ ?
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OpenStudy (skullpatrol):
Any ideas? Hint: a^2 + 2ab + b^2
OpenStudy (hockeychick23):
ohhh thanks! 1^2+2(1)(-13)+(-13^2) 1-26+169 170-26= 144 c=144
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